Heating control method, heating control device, battery assembly and electronic atomization device

Abstract

The present application relates to the heating control method, heating control device, battery assembly and electronic atomization device of electronic atomization device, heating control method of electronic atomization device includes: after obtaining the signal inserted into atomizer, the real-time resistance value of at least two sampling time of heating body is calculated, wherein the interval between adjacent sampling time is less than preset time;The temperature control resistance value is obtained according to the difference between the real-time resistance value of adjacent sampling time;And the heating power of electronic atomization device is adjusted according to the temperature control resistance value.The heating control method, heating control device, electronic atomization device and computer readable storage medium of electronic atomization device of the present application can be used in various application scenarios, and the temperature control resistance value of heating body is accurately obtained by using the difference between the real-time resistance value of adjacent sampling time collected, so as to accurately adjust the heating power of electronic atomization device by using the temperature control resistance value subsequently.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of aerosol generating equipment, and more particularly, to a heating control method and device of an electronic atomization device, a battery assembly, and the electronic atomization device. BACKGROUND

[0002] The existing electronic atomizer generally includes an atomizer and a battery assembly. The atomizer is provided with a heating body for heating aerosol generating substrate stored in the atomizer to form an aerosol under the driving of the battery. The atomizer and the battery assembly are in a pluggable connection. The atomizer is usually disposable, and a new atomizer is replaced after the aerosol generating substrate in the atomizer is used up. The battery assembly can be reused, and a new atomizer is replaced for use after the atomizer is used up.

[0003] The basic principle of electronic atomizer control is that the current temperature of the heating body is calculated according to the current resistance value of the heating body in the process of atomization, and the heating power of the heating body is controlled according to the current temperature of the heating body. Even if the atomizers are of the same model, the resistance values of the atomizers at room temperature are not the same. Therefore, each time the atomizer is inserted into the battery assembly, the controller of the battery assembly controls the current resistance value of the heating body to be collected as a temperature control resistance value, which is used as a reference for subsequent temperature control. However, under some extreme use conditions, the calculation of the room temperature resistance value may be wrong, which may cause errors in subsequent temperature control. SUMMARY

[0004] Based on this, the present application provides a heating control method and device of an electronic atomization device, a battery assembly, and the electronic atomization device, which are used to solve the problem that the calculation of the room temperature resistance value may be wrong.

[0005] The heating control method of the electronic atomization device provided in the present application includes: after a signal of an inserted atomizer is acquired, calculating real-time resistance values of a heating body in the atomizer at at least two sampling time points, wherein the interval between adjacent sampling time points is less than a preset time; acquiring a temperature control resistance value according to the difference between the real-time resistance values at adjacent sampling time points; and adjusting the heating power of the electronic atomization device according to the temperature control resistance value.

[0006] In one embodiment, the temperature control resistance value is acquired according to the difference between the real-time resistance values, including: in the case where the difference is less than or equal to a first threshold value, any real-time resistance value is taken as the temperature control resistance value.

[0007] In one of the embodiments, the temperature control resistance value is obtained according to the difference between the adjacent real-time resistance values, including: in the case that the difference is greater than a first threshold value and less than or equal to a second threshold value, setting the latest obtained one of the real-time resistance values as the temperature control resistance value.

[0008] In one of the embodiments, the temperature control resistance value is obtained according to the difference between the adjacent real-time resistance values, including: in the case that the difference is greater than a second threshold value, continuously obtaining the real-time resistance value of the heating body at the next sampling time until the difference between the real-time resistance values at the adjacent sampling times is less than or equal to the second threshold value, and setting the latest obtained one of the real-time resistance values of the heating body as the temperature control resistance value.

[0009] In one of the embodiments, the real-time resistance value includes at least four values; the temperature control resistance value is obtained according to the difference between the adjacent real-time resistance values, including: in the case that the difference is greater than a first threshold value, substituting the at least four real-time resistance values into a time-resistance relationship formula to calculate the temperature control resistance value in the time-resistance relationship formula, and the time-resistance relationship formula represents the change rule of the resistance value of the heating body with time under the natural cooling condition.

[0010] In one of the embodiments, the temperature control resistance value is obtained according to the difference between the adjacent real-time resistance values, including: in the case that the real-time resistance values are sequentially decreased and the difference between the adjacent real-time resistance values is greater than the first threshold value, using the temperature control resistance value used in the last temperature control as the temperature control resistance value for the current temperature control.

[0011] In one of the embodiments, the heating power of the electronic atomization device is adjusted according to the temperature control resistance value, including: obtaining the temperature change of the heating body relative to the normal temperature according to the temperature control resistance value and the real-time resistance value at the current time; obtaining the temperature value of the heating body at the current time according to the temperature change value and the normal temperature; and controlling the heating power of the electronic atomization device according to the temperature value of the heating body at the current time and the preset target temperature value.

[0012] The heating control device of the electronic atomization device provided in the application is applied to an electronic atomization device, and the electronic atomization device includes a heating body. The heating control device includes a first obtaining module, a second obtaining module and a control module. The first obtaining module is used for obtaining a signal inserted into an atomizer and calculating at least two sampling time real-time resistance values of a heating body in the atomizer, wherein the interval between the adjacent sampling times is less than a preset time. The second obtaining module is used for obtaining a temperature control resistance value according to the difference between the real-time resistance values at the adjacent sampling times. The control module is used for adjusting the heating power of the electronic atomization device according to the temperature control resistance value.

[0013] The battery assembly provided by the application comprises a memory and a processor, the memory stores a computer program, and the processor is used to implement the following method: after obtaining a signal of inserting an atomizer, calculating real-time resistance values of a heating body in the atomizer at at least two sampling time points, wherein the interval between adjacent sampling time points is less than a preset time; obtaining a temperature control resistance value according to the difference between the real-time resistance values at adjacent sampling time points; and adjusting the heating power of the electronic atomization device according to the temperature control resistance value.

[0014] The electronic atomization device provided by the application comprises an atomizer and a battery assembly, the battery assembly comprises a memory and a processor, the memory stores a computer program, and the processor is used to implement the following method: after obtaining a signal of inserting an atomizer, calculating real-time resistance values of a heating body in the atomizer at at least two sampling time points, wherein the interval between adjacent sampling time points is less than a preset time; obtaining a temperature control resistance value according to the difference between the real-time resistance values at adjacent sampling time points; and adjusting the heating power of the electronic atomization device according to the temperature control resistance value.

[0015] The heating control method, the heating control device, the battery assembly and the electronic atomization device can accurately obtain the temperature control resistance value of the heating body by using the difference between the real-time resistance values at adjacent sampling time points in various application scenarios, so as to accurately adjust the heating power of the electronic atomization device by using the temperature control resistance value subsequently. BRIEF DESCRIPTION OF DRAWINGS

[0016] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

[0017] Figure 1 It is a structural schematic diagram of the electronic atomization device in an embodiment of the present application;

[0018] Figure 2 It is a flowchart of the heating control method of the electronic atomization device in an embodiment of the present application;

[0019] Figure 3 It is a structural schematic diagram of the heating control device in an embodiment of the present application;

[0020] Figure 4 It is a flowchart of the heating control method of the electronic atomization device in an embodiment of the present application;

[0021] Figure 5 It is a schematic diagram of the relationship between the real-time resistance value of the heating body and time under the condition of natural cooling in an embodiment of the present application;

[0022] Figure 6 A flowchart of a heating control method for an electronic atomization device according to an embodiment of the present application is shown in FIG. 1.

[0023] Figure 7 A flowchart of a heating control method for an electronic atomization device according to an embodiment of the present application is shown in FIG. 1.

[0024] Figure 8 A flowchart of a heating control method for an electronic atomization device according to an embodiment of the present application is shown in FIG. 1.

[0025] Figure 9 A flowchart of a heating control method for an electronic atomization device according to an embodiment of the present application is shown in FIG. 1.

[0026] Figure 10 A flowchart of a heating control method for an electronic atomization device according to an embodiment of the present application is shown in FIG. 1.

[0027] Figure 11 A structural diagram of a computer readable storage medium according to an embodiment of the present application is shown in FIG. 1. DETAILED DESCRIPTION

[0028] In order to make the above objectives, features and advantages of the present application more clear and easily understood, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, a lot of specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be implemented in many different ways other than those described herein, and one of ordinary skill in the art can make similar improvements without departing from the scope of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0029] In the description of the present application, it should be understood that the terms “center”, “longitudinal”, “transverse”, “length”, “width”, “thickness”, “upper”, “lower”, “front”, “rear”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential” and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0030] In addition, the terms “first” and “second” are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features referred to. Therefore, the features defined with “first” and “second” can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of “a plurality of” is at least two, such as two, three, etc., unless otherwise specifically limited.

[0031] In the present application, unless specifically defined otherwise and limited, the terms "mount", "connect", "connection", "fixed", and the like, should be construed as broadly as possible, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements, unless specifically defined otherwise. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0032] In the present application, unless specifically defined otherwise and limited, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be indirectly in contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be directly above or obliquely above the first feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be directly below or obliquely below the first feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0033] It should be noted that when an element is referred to as "fixed to" or "provided to" another element, it can be directly on another element or there can be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and are not the only embodiment.

[0034] The control method and electronic atomization device 100 provided by the embodiments of the present application are used to heat the aerosol generating substrate to generate aerosol for the user to use. Among them, the heating method can be convection, conduction, radiation or a combination thereof. The form of the aerosol generating substrate can be liquid, gel, paste or solid, etc. When the aerosol generating substrate is solid, it can be in the form of crushed, granulated, powdered, granular, strip or sheet. The aerosol generating substrate includes but is not limited to materials used for medical, health, health, beauty purposes, for example, the aerosol generating substrate is a liquid medicine, an oil, or the aerosol generating substrate is a plant material, such as the roots, stems, leaves, flowers, buds, seeds, etc. of plants. That is, the embodiments of the present application do not limit the heating method, form and purpose of the aerosol generating substrate.

[0035] Please refer to Figure 1The electronic atomization device 100 comprises an atomizer 40 and a battery assembly 50. The atomizer 40 is internally provided with a heating body 41.

[0036] The atomizer 40 can be inserted into the battery assembly 50. When the atomizer 40 is inserted into the battery assembly 50, the battery assembly 50 can heat the heating body 41 at a certain heating power, so that the heating body 41 heats the aerosol generating substrate to generate aerosol for a user to use. In order to accurately control the heating power of the heating body 41, it is often necessary to accurately obtain the resistance value of the heating body 41 in a normal temperature environment as a temperature control resistance value, and use the temperature control resistance value as a reference for subsequent temperature control.

[0037] Please refer to Figure 2 The application also provides a heating control method of the electronic atomization device 100, which can accurately obtain the heating resistance value of the heating body 41 to accurately adjust the heating power of the electronic atomization device 100.

[0038] Please refer to Figure 1 and Figure 2 The heating control method of the electronic atomization device 100 comprises:

[0039] 01: After obtaining a signal of inserting the atomizer 40, calculating the real-time resistance values of the heating body 41 at at least two sampling time points in the atomizer 40, wherein the interval between adjacent sampling time points is less than a preset time;

[0040] 03: Obtaining a temperature control resistance value according to the difference between the real-time resistance values at adjacent sampling time points; and

[0041] 05: Adjusting the heating power of the electronic atomization device 100 according to the temperature control resistance value.

[0042] Please refer to Figure 1 In some embodiments, the battery assembly 50 further comprises a memory 51 and a processor 52. The memory 51 stores a computer program. Please refer to Figure 2 The processor 52 is configured to execute the computer program in the memory 51 to implement the methods in steps 01, 03 and 05. That is, the processor 52 can be configured to: after obtaining a signal of inserting the atomizer 40, calculate the real-time resistance values of the heating body 41 at at least two sampling time points, wherein the interval between adjacent sampling time points is less than a preset time; obtain a temperature control resistance value according to the difference between the real-time resistance values at adjacent sampling time points; and adjust the heating power of the electronic atomization device 100 according to the temperature control resistance value.

[0043] Please refer to Figure 3The application also provides a heating control device 10, which can be applied to the electronic atomization device 100 in the embodiments of the application. In one embodiment, the heating control device 10 is arranged in the battery assembly 50. The heating control device 10 comprises a first acquisition module 11, a second acquisition module 12 and a control module 13. Please refer to the description of the electronic atomization device 100 for the functions of the heating control device 10. Figure 2 The first acquisition module 11 is configured to perform the method in step 01, the second acquisition module 12 is configured to perform the method in step 03, and the control module 13 is configured to perform the method in step 05. That is, the first acquisition module 11 is configured to calculate the real-time resistance values of the heating element 41 at at least two sampling time points after obtaining the signal inserted into the atomizer 40, wherein the interval between adjacent sampling time points is less than a preset time. The second acquisition module 12 is configured to obtain the temperature control resistance value according to the difference between the real-time resistance values at adjacent sampling time points. The control module 13 is configured to adjust the heating power of the electronic atomization device 100 according to the temperature control resistance value.

[0044] Please refer to Figure 1 and Figure 2 , wherein the atomizer 40 is a component storing an aerosol generating substrate, and the heating element 41 is arranged in the atomizer 40. When the atomizer 40 is inserted into the electronic atomization device 100, the electronic atomization device 100 can heat the heating element 41 to make the heating element 41 heat up, and use the heat generated by the heating element 41 to heat the aerosol generating substrate in the atomizer 40 to generate aerosol. When the atomizer 40 is not inserted into the electronic atomization device 100, the electronic atomization device 100 does not need to start the heating function to heat the heating element 41 in the atomizer 40.

[0045] The insertion of the atomizer 40 into the battery assembly 50 includes various application scenarios. For example, scenario one: the user replaces the old atomizer 40 with a new (previously unused) atomizer 40 and inserts it into the battery assembly 50 for heating. Scenario two: the user removes the atomizer 40 when the heating body 41 is heated to a certain extent, and then inserts it into the battery assembly 50 for heating after a short period of time, at which time the heating body in the atomizer 40 has not cooled to room temperature. Scenario three: the user removes the atomizer 40 (A) when the heating body 41 is heated to a certain extent, and then immediately replaces it with another atomizer 40 (B) with a heating body 41 that has been heated to a certain extent and inserts it into the battery assembly 50. In the prior art, the resistance value of the heating body at the moment of insertion into the electronic atomization device is determined as the temperature control resistance value (the temperature control resistance value is the resistance value at room temperature), and this temperature control resistance value is used as the basis for temperature control of the heating body. Under the use conditions of scenarios two and three, the temperature control resistance value used is not the resistance of the heating body at room temperature. For example, in scenario two, the user removes the heating body 41 that has not cooled, and then reinserts the atomizer 40 into the electronic atomization device 100 and immediately begins heating the heating body 41. If the current resistance of the heating body 41 is R1 and the actual temperature of the heating body 41 is 150 degrees Celsius, then the electronic atomization device 100 will use the resistance value of the heating body 41 at 150 degrees Celsius as the temperature control resistance value (i.e., the resistance value of the heating body at 150 degrees Celsius is used as the resistance value at 25 degrees Celsius), which will result in subsequent temperature control errors. The heating control method of the electronic atomization device 100 of the present application reacquires the corresponding temperature control resistance value based on the real-time resistance value of the heating body each time a signal is acquired from the inserted atomizer 40, and can acquire the resistance of the heating body 41 at room temperature as the temperature control resistance value under the use conditions of scenarios two and three described above, thereby ensuring accurate subsequent temperature control.

[0046] Further description is made below in conjunction with the accompanying drawings.

[0047] Please refer to Figure 4 In some embodiments, 03: acquiring the temperature control resistance value based on the difference between adjacent real-time resistance values, includes:

[0048] 031: in the case where the difference is less than or equal to a first threshold value, using any real-time resistance value as the temperature control resistance value.

[0049] Please refer to Figure 1 In some embodiments, the processor 52 can also be used to perform the method in step 031 described above. That is, the processor 52 can be used to: in the case where the difference is less than or equal to a first threshold value, use any real-time resistance value as the temperature control resistance value.

[0050] Please refer to Figure 3In some embodiments, the second acquisition module 12 can also be configured to perform the method in step 031. That is, the second acquisition module 12 can also be configured to: in the case where the difference is less than or equal to the first threshold, take any real-time resistance value as the temperature control resistance value.

[0051] Please refer to Figure 5 , Figure 5 is a schematic diagram of the change of the real-time resistance value of the heating element 41 with time under the condition of natural cooling (i.e., cooling at the use environment temperature, for example, setting 20 degrees Celsius as the use environment temperature). The resistance-time change relationship schematic diagram can be obtained according to multiple heating tests on the electronic atomization device 100, the heating test is to obtain multiple test data by testing the change of the real-time resistance value of the heating element 41 with time under the condition of natural cooling, and the resistance-time change relationship curve as shown in the schematic diagram can be fitted according to the test data obtained by the test, which can represent the change rule of the change of the real-time resistance value of the heating element 41 with time under the condition of natural cooling. Figure 5

[0052] Please refer to Figure 5 , the schematic diagram is divided into a first interval, a second interval and a third interval according to time periods. The third interval is the initial time period when the heating element 41 starts to cool naturally, and the real-time resistance value in the third interval changes greatly with time. The second interval is a time period corresponding to a period after the heating element 41 cools naturally, and the real-time resistance value in the second interval changes less with time, and the real-time resistance value is close to the resistance value of the heating element 41 in a normal temperature environment. The first interval is a time period when the heating element 41 cools to a temperature close to the normal temperature, and the real-time resistance values at different time points in the third interval are approximately equal.

[0053] The first threshold is used to determine whether the adjacent real-time resistance values are approximately equal. In the case where the difference between the adjacent real-time resistance values is less than or equal to the first threshold, it can be considered that the adjacent real-time resistance values are approximately equal, and the real-time resistance value in the first interval corresponding to the adjacent sampling time points is shown in the schematic diagram. Figure 5

[0054] The difference between the adjacent real-time resistance values refers to the difference between the real-time resistances at adjacent sampling time points. For example, assuming that the two adjacent sampling time points t1 and t2, t1 is the earlier time point, and t2 is the later time point, the two real-time resistance values collected at the two sampling time points t1 and t2 are R t1 and R t2 , (R t1 -R t2 ) =△R t12 . Assuming that the first threshold is R y1 , then△R t12 ≤R y1 ​​In the case where the difference is less than or equal to the first threshold value, any of the real-time resistance values can be considered as the temperature control resistance value. t1 ≈R t2 , the ambient temperature corresponding to the heating body 41, so that R t1 and R t2 are approximately equal.

[0055] In some embodiments, the adjacent real-time resistance values for difference judgment can be two or more, which is not limited here. For example, in one embodiment, the real-time resistance values R t1 , R t2 , R t3 , R t4 are obtained at adjacent sampling times t1, t2, t3, t4 respectively, (R t1 -R t2 ) = ΔR t12 , (R t2 -R t3 ) = ΔR t23 , (R t3 -R t4 ) = ΔR t34 , and step 031: in the case where the difference is less than or equal to the first threshold value, any of the real-time resistance values can be considered as the temperature control resistance value, which means that in the case where ΔR t12 , ΔR t23 , ΔR t34 are all less than or equal to the first threshold value R y1 , any of R t1 , R t2 , R t3 , R t4 can be considered as the temperature control resistance value, that is, in this case R t1 ≈R t2 ≈R t3 ≈R t4 .

[0056] Please refer to Figure 6 , in some embodiments, 03: obtaining the temperature control resistance value according to the difference between adjacent real-time resistance values, comprising:

[0057] 033: in the case where the difference is greater than the first threshold value and less than or equal to the second threshold value, the latest one of the real-time resistance values is considered as the temperature control resistance value.

[0058] Please refer to Figure 1 , in some embodiments, the processor 52 can also be used to execute the method in step 033 described above. That is, the processor 52 can be used to: in the case where the difference is greater than the first threshold value and less than or equal to the second threshold value, the latest one of the real-time resistance values is considered as the temperature control resistance value.

[0059] Please combine Figure 3 In some embodiments, the second acquisition module 12 can also be used to perform the method in step 033 above. That is, the second acquisition module 12 can also be used to: set the most recently acquired real-time resistance value as the temperature control resistance value when the difference is greater than the first threshold and less than or equal to the second threshold.

[0060] Please combine Figure 5 If the difference between adjacent real-time resistance values ​​is greater than a first threshold, the adjacent real-time resistance values ​​are... Figure 5 The real-time resistance value is within the second or third interval. In this case, the most recently acquired real-time resistance value is the resistance value closest to the real-time resistance value of the first interval, which is a resistance value that is almost equal to the resistance value of the heating element 41 under normal temperature conditions. That is, when the difference between adjacent real-time resistance values ​​is greater than the first threshold, the most recently acquired real-time resistance value is the one closest to the resistance value of the heating element 41 under normal temperature conditions.

[0061] In some application scenarios, it may be in Figure 5 The third interval, as shown, receives the signal from the inserted atomizer 40, such as... Figure 5 As shown, the real-time resistance value at the sampling time in the third interval differs significantly from the real-time resistance value in the first interval. The real-time resistance value in the first interval is almost equal to the resistance value of the heating element 41 at room temperature. In other words, the real-time resistance value in the third interval differs significantly from the resistance value of the heating element 41 at room temperature. Therefore, if the real-time resistance value in the third interval is directly set as the temperature control resistance value, the difference between the temperature control resistance value and the resistance value of the heating element 41 at room temperature will be significant, which may lead to inaccurate adjustment of the heating power using the temperature control resistance value.

[0062] The second threshold is used to determine the degree of difference between adjacent real-time resistance values. If the difference is greater than the second threshold, it indicates that the difference between adjacent real-time resistance values ​​is large, corresponding to the cooling situation in the third interval; if the difference is less than or equal to the second threshold, it indicates that the difference between adjacent real-time resistance values ​​is small, corresponding to the cooling situation in the second interval or the first interval. As mentioned above, the real-time resistance value obtained at the sampling time in the third interval differs greatly from the resistance value under normal temperature conditions, making it unsuitable for adjusting the heating power of the electronic atomizing device 100. According to the method in step 031 above, the real-time resistance value obtained at the sampling time in the first interval can be directly set as the temperature control resistance value. For the real-time resistance value obtained at the sampling time in the second interval, if the sampling resistance value is determined to be the sampling resistance of the second interval, the latest obtained real-time resistance value can be set as the temperature control resistance value, so that the real-time resistance value closest to the resistance value of the heating element 41 under normal temperature conditions is set as the temperature control resistance value.

[0063] The first threshold value and the second threshold value can be combined to determine which interval of cooling condition the adjacent real-time resistance value corresponds to. Specifically, let the difference between the adjacent real-time resistance values be △R, the first threshold value be R y1 , the first threshold value be R y2 , the second threshold value be R y1 , the third threshold value be R y2 , and the fourth threshold value be R y1 , then in the case of △R≤R y2 , the first interval is corresponded to; in the case of △R>R y2 , the third interval is corresponded to; in the case of R y1 <R y2 , the second interval is corresponded to. That is to say, step 033 is equivalent to in the case that the difference between the adjacent real-time resistance values represents that the adjacent real-time resistance values are relatively close to the resistance value of the heat generating body 41 in the normal temperature environment, and the latest acquired one of the adjacent real-time resistance values is the closest to the resistance value of the heat generating body 41 in the normal temperature environment, the latest acquired one of the adjacent real-time resistance values is set as the temperature control resistance value.

[0064] Therefore, in the case that the difference between the adjacent real-time resistance values is greater than the first threshold value and less than or equal to the second threshold value, the latest acquired one of the real-time resistance values can be set as the temperature control resistance value, so as to adjust the heating power by using the resistance value closest to the resistance value of the heat generating body 41 in the normal temperature environment, and ensure the adjustment accuracy.

[0065] Referring to Figure 7 , in some embodiments, 03: acquiring the temperature control resistance value according to the difference between the adjacent real-time resistance values, comprises:

[0066] 034: in the case that the difference is greater than the second threshold value, continuously acquiring the real-time resistance value of the heat generating body 41 at the next sampling time until the difference between the real-time resistance values at the adjacent sampling times is less than or equal to the second threshold value, and setting the latest acquired one of the real-time resistance values of the heat generating body 41 as the temperature control resistance value.

[0067] Referring to Figure 1 , in some embodiments, the processor 52 can also be used to execute the method in step 034 described above. That is, the processor 52 can be used to: in the case that the difference is greater than the second threshold value, continuously acquire the real-time resistance value of the heat generating body 41 at the next sampling time until the difference between the real-time resistance values at the adjacent sampling times is less than or equal to the second threshold value, and set the latest acquired one of the real-time resistance values of the heat generating body 41 as the temperature control resistance value.

[0068] Referring to Figure 3In some embodiments, the second acquisition module 12 can also be configured to perform the method in step 034. That is, the second acquisition module 12 can also be configured to: in the case where the difference is greater than the second threshold value, continue to acquire the real-time resistance value of the heating body 41 at the next sampling time until the difference between the real-time resistance values at adjacent sampling times is less than or equal to the second threshold value, and set the latest acquired real-time resistance value of the heating body 41 as the temperature control resistance value.

[0069] Please refer to Figure 5 Although the difference between the real-time resistance value acquired at the sampling time in the third interval and the resistance value in the normal temperature environment is large, which is not suitable for adjusting the heating power of the electronic atomization device 100, the duration of the third interval is short. If it is determined that the adjacent real-time resistance value is the real-time resistance value in the third interval, then the heating body 41 can be waited to continue to cool to the case where the real-time resistance value of the heating body 41 corresponds to the real-time resistance value in the second interval. The real-time resistance value in this case is closer to the resistance value of the heating body 41 in the normal temperature environment, and can be used for adjusting the heating power of the electronic atomization device 100.

[0070] That is, in the case where the difference between the adjacent real-time resistance values is greater than the second threshold value, the adjacent real-time resistance values represent the cooling condition in the third interval. In this case, the temperature control resistance value is not set, and the real-time resistance value of the heating body 41 at the subsequent sampling time is continuously acquired. Until the difference between the real-time resistance values at adjacent sampling times is less than or equal to the second threshold value, the adjacent real-time resistance values represent the cooling condition in the second interval. The latest acquired real-time resistance value of the heating body 41 can be set as the temperature control resistance value by using the principle of step 033, so as to set the real-time resistance value closest to the resistance value of the heating body 41 in the normal temperature environment as the temperature control resistance value.

[0071] Please refer to Figure 8 In some embodiments, 03: acquiring the temperature control resistance value according to the difference between the adjacent real-time resistance values, comprises:

[0072] 035: in the case where the difference is greater than the first threshold value, substituting at least four real-time resistance values into a time-resistance relationship formula to calculate the temperature control resistance value in the time-resistance relationship formula, the time-resistance relationship formula representing the change rule of the resistance value of the heating body with time under the natural cooling condition.

[0073] Please refer to Figure 1 In some embodiments, the processor 52 can also be configured to perform the method in step 035. That is, the processor 52 can be configured to, in the case where the difference is greater than the first threshold value, substitute at least four real-time resistance values into a time-resistance relationship formula to calculate the temperature control resistance value in the time-resistance relationship formula, the time-resistance relationship formula representing the change rule of the resistance value of the heating body with time under the natural cooling condition.

[0074] Please combine Figure 3 In some embodiments, the second acquisition module 12 can also be used to perform the method in step 035 above. That is, the second acquisition module 12 can also be used to: when the difference is greater than the first threshold, substitute at least four real-time resistance values ​​into the time-resistance relationship to calculate the temperature control resistance value in the time-resistance relationship, wherein the time-resistance relationship characterizes the change law of the resistance value of the heating element with time under natural cooling conditions.

[0075] Please combine Figure 5 In some embodiments, the time-resistance relationship is obtained based on the change in the real-time resistance value of the heating element 41 over time during natural cooling. The time-resistance relationship characterizes the correlation between the real-time resistance value, the temperature-controlling resistance value, the cooling resistance value, the sampling time, and the preset cooling constant. Based on the time-resistance relationship, the temperature-controlling resistance value can be calculated using at least four adjacent real-time resistance values ​​during any cooling period. This temperature-controlling resistance value characterizes the real-time resistance value of the heating element 41 under normal temperature conditions.

[0076] As mentioned above, the real-time resistance value of the first interval is almost equal to the real-time resistance value of the heating element 41 under normal temperature conditions. Therefore, when adjacent real-time resistance values ​​correspond to the first interval, that is, when adjacent real-time resistance values ​​are less than or equal to the first threshold, it is not necessary to use the time-resistance relationship to calculate the temperature control resistance value. Instead, any one of the adjacent real-time resistance values ​​can be directly set as the temperature control resistance value according to the method in step 031, thereby saving calculation steps and obtaining the temperature control resistance value more quickly.

[0077] If the difference between adjacent real-time resistance values ​​is greater than the first threshold, the adjacent real-time resistance values ​​are not approximately equal to the real-time resistance value of the heating element 41 under normal temperature conditions. Therefore, the temperature control resistance value that can characterize the real-time resistance value of the heating element 41 under normal temperature conditions can be accurately calculated based on the time-resistance relationship.

[0078] Specifically, let the real-time resistance value be R. x The temperature control resistor value is R0, and the cooling resistor value is R. s (The cooling resistance value is the resistance value of the heating element 41 at the start of natural cooling, for example, the resistance value when the heating element 41 stops heating at 270 degrees Celsius and begins cooling at room temperature), and the time interval t between the start of natural cooling. x If the cooling constant is k (k remains constant during a single cooling process), then the preset time-resistance relationship is as shown in Formula 1:

[0079] Formula 1: R x =R s +(R0-R s)*(1-exp(-T x / k)), where (T) x =t x ^(1 / 4.4)).

[0080] Formula 1 is the fitting formula for the curve of the change of the real-time resistance value of a heating element over time when the heating element naturally cools down according to Newton's law of cooling. Figure 5 This is the curve showing the real-time resistance of the heating element 41 under natural cooling conditions as a function of time. The natural cooling of the heating element 41 follows Newton's law of cooling; therefore, Formula 1 satisfies the requirements of… Figure 5 Fitting the resistance-time relationship curve. That is, in Figure 5 The arbitrary time interval t determined on the resistance-time relationship curve and the start of natural cooling. x The resistance value R obtained by substituting into Formula 1 x yes Figure 5 The real-time resistance value R on the resistance-time curve. t .

[0081] As can be seen, Formula 1 includes the temperature control resistor value R0 and the cooling resistor value R s The time interval t from the start of natural cooling x There are four unknowns: k, y, and k. Therefore, the real-time resistance value R is available. x In this case, simply obtain at least four adjacent real-time resistance values ​​at preset intervals and substitute them into Equation 1 above to obtain at least four equations. Solving these four equations simultaneously will yield the remaining unknowns: the temperature control resistance value R0 and the cooling resistance value R. s Sampling time (time interval between the start of natural cooling) t x .

[0082] For example, four real-time resistance values ​​are obtained as R t1 R t2 R t3 R t4 Substituting into Formula 1, we obtain the following four equations:

[0083] Equation 1: R t1 =R s +(R0-R s )*(1-exp(-T1 / k)), where (T1=t1^(1 / 4.4));

[0084] Equation 2: R t2 =R s +(R0-R s )*(1-exp(-T2 / k)), where (T2=t2^(1 / 4.4)), t2=t1+△t;

[0085] Equation three: R t3 = R s + (R0-R s )*(1-exp(-T3 / k)), wherein (T3=t3^(1 / 4.4)), t3=t2+△t;

[0086] Equation four: R t4 = R s + (R0-R s )*(1-exp(-T4 / k)), wherein (T4=t4^(1 / 4.4)), t4=t3+△t;

[0087] Wherein,△t is a preset time interval. Thus, in the case of four real-time resistance values R t1 , R t2 , R t3 , R t4 known, the simultaneous equations one, equation two, equation three and equation four can be solved to obtain k, R s , R0and t1, so as to obtain the temperature control resistance value R0.

[0088] Please refer to Figure 9 In some embodiments, 03: obtaining the temperature control resistance value according to the difference between adjacent real-time resistance values, comprising:

[0089] 039: in the case that the real-time resistance values decrease in turn, and the difference between adjacent real-time resistance values is greater than a first threshold value, the temperature control resistance value used in the last temperature control is taken as the temperature control resistance value of this time temperature control.

[0090] Please combine Figure 1 In some embodiments, the processor 52 can also be used to execute the method in the above step 039. That is, the processor 52 can be used to: in the case that the real-time resistance values decrease in turn, and the difference between adjacent real-time resistance values is greater than a first threshold value, the temperature control resistance value used in the last temperature control is taken as the temperature control resistance value of this time temperature control.

[0091] Please combine Figure 3 In some embodiments, the second acquisition module 12 can also be used to execute the method in the above step 039. That is, the second acquisition module 12 can also be used to: in the case that the real-time resistance values decrease in turn, and the difference between adjacent real-time resistance values is greater than a first threshold value, the temperature control resistance value used in the last temperature control is taken as the temperature control resistance value of this time temperature control.

[0092] In some embodiments, since the probability of the user replacing the hot old atomizer 40 with a hot new atomizer 40 is extremely low, in the case that the real-time resistance values decrease in turn and the difference between adjacent real-time resistance values is greater than the first threshold value, it is considered that the user performs the plugging operation on the same relatively hot atomizer 40. In this case, the temperature control resistance value calculated according to the insertion of the atomizer 40 still applies, and therefore the temperature control resistance value used in the last temperature control can be used as the temperature control resistance value of the current temperature control.

[0093] Referring to Figure 10 In some embodiments, 05: adjusting the heating power of the electronic atomization device 100 according to the temperature control resistance value, comprises:

[0094] 051: obtaining the temperature change of the heating element 41 relative to the normal temperature according to the temperature control resistance value and the real-time resistance value at the current time;

[0095] 053: obtaining the temperature value of the heating element 41 at the current time according to the temperature change value and the normal temperature; and

[0096] 055: controlling the heating power of the electronic atomization device 100 according to the temperature value of the heating element 41 at the current time and the preset target temperature value.

[0097] Referring to Figure 1 In some embodiments, the processor 52 can also be used to execute the methods in steps 051, 053 and 055 described above. That is, the processor 52 can be used to: obtain the temperature change of the heating element 41 relative to the normal temperature according to the temperature control resistance value and the real-time resistance value at the current time; obtain the temperature value at the current time according to the temperature change value and the normal temperature; and control the heating power of the electronic atomization device 100 according to the temperature value at the current time and the preset target temperature value.

[0098] Referring to Figure 3 In some embodiments, the control module 13 can also be used to execute the methods in steps 051, 053 and 055 described above. That is, the control module 13 can also be used to: obtain the temperature change of the heating element 41 relative to the normal temperature according to the temperature control resistance value and the real-time resistance value at the current time; obtain the temperature value at the current time according to the temperature change value and the normal temperature; and control the heating power of the electronic atomization device 100 according to the temperature value at the current time and the preset target temperature value.

[0099] Wherein, the temperature value at the current time refers to the temperature value of the heating element 41 at the current time. Assuming that the temperature value at the current time is Tt, Tt can be calculated according to the following formula two.

[0100] Formula two: Tt = T0 + △T

[0101] Wherein, T0 is normal temperature, usually 25℃, or other temperature value can be selected as normal temperature according to actual situation. △T is the temperature change of the heating body 41 relative to normal temperature, which can be calculated according to formula three.

[0102] Formula three: △T = (R t -R0) / (R0*TCR)

[0103] Wherein, R t is the real-time resistance value of the heating body 41 at the current moment, R0 is the temperature control resistance value, and TCR is the resistance temperature coefficient of the heating body 41, which is a known quantity.

[0104] In summary, the temperature change of the heating body 41 relative to normal temperature can be obtained according to formula three, and the temperature value of the heating body 41 at the current moment can be obtained according to formula four, which is used to adjust the heating power of the electronic atomization device 100 in combination with the target temperature value.

[0105] In some embodiments, the target temperature value is used as a judgment threshold for dry burning prevention processing. In this case, if the temperature value of the heating body 41 at the current moment is greater than or equal to the target temperature value, the heating power of the electronic atomization device 100 is reduced to 0 or a lower power to avoid dry burning.

[0106] In some embodiments, the target temperature value is the temperature that the heating body 41 is expected to reach. In one embodiment, the target temperature is Tm, and Tm±G℃ is the acceptable temperature control range. If the temperature value Tt of the heating body 41 at the current moment is greater than or equal to Tm+G℃, the heating power of the electronic atomization device 100 is controlled to decrease; if the temperature value Tt of the heating body 41 at the current moment is less than Tm-G℃, the heating power of the electronic atomization device 100 is controlled to increase, so as to maintain the temperature of the heating body 41 between Tm±G℃.

[0107] Please refer to Figure 11 The embodiment also provides a computer readable storage medium 400, which stores a computer program 401, and the computer program 401 can realize the steps of the heating control method in any one of the embodiments of the embodiment when executed by the processor 52.

[0108] The technical features of the above-described embodiments can be combined in any manner. To make the description concise, all possible combinations of the technical features in the above-described embodiments are not described, but as long as the combinations of the technical features do not exist contradictions, they should be considered as the scope of the disclosure. Meanwhile, other embodiments can be derived from the above-described embodiments, so that structure and logic substitutions and changes can be made without departing from the scope of the disclosure.

[0109] The above embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the patent. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, several modifications and improvements can be made, which are within the scope of protection of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A heating control method for an electronic atomizing device, characterized in that, The method includes: After acquiring the signal of the inserted atomizer, calculate the real-time resistance value of the heating element in the atomizer at at least two sampling times, wherein the interval between adjacent sampling times is less than a preset time; The temperature control resistance value is obtained based on the difference between the real-time resistance values ​​at adjacent sampling times; and Adjust the heating power of the electronic atomizing device according to the temperature control resistor value; The step of obtaining the temperature control resistance value based on the difference between adjacent real-time resistance values ​​includes: If the difference is less than or equal to the first threshold, any real-time resistance value shall be used as the temperature control resistance value. If the difference is greater than the first threshold and less than or equal to the second threshold, the most recently acquired real-time resistance value is set as the temperature control resistance value. If the difference is greater than the second threshold, the real-time resistance value of the heating element at the next sampling time is obtained until the difference between the real-time resistance values ​​at adjacent sampling times is less than or equal to the second threshold. The latest obtained real-time resistance value of the heating element is then set as the temperature control resistance value.

2. The heating control method according to claim 1, characterized in that, The real-time resistance values ​​include at least four; obtaining the temperature control resistance value based on the difference between adjacent real-time resistance values ​​includes: If the difference is greater than the first threshold, at least four of the real-time resistance values ​​are substituted into the time-resistance relationship to calculate the temperature control resistance value in the time-resistance relationship. The time-resistance relationship characterizes the change of the resistance value of the heating element with time under natural cooling conditions.

3. The heating control method according to claim 1, characterized in that, The step of obtaining the temperature control resistance value based on the difference between adjacent real-time resistance values ​​includes: If the real-time resistance values ​​decrease sequentially and the difference between adjacent real-time resistance values ​​is greater than a first threshold, the temperature control resistance value used in the previous temperature control will be used as the temperature control resistance value for this temperature control.

4. The heating control method according to claim 1, characterized in that, Adjusting the heating power of the electronic atomizing device according to the temperature control resistor value includes: The temperature change of the heating element relative to room temperature is obtained based on the temperature control resistor value and the real-time resistance value at the current moment. The current temperature value of the heating element is obtained based on the temperature change value and the ambient temperature; and The heating power of the electronic atomizing device is controlled based on the current temperature value of the heating element and the preset target temperature value.

5. A heating control device, applied to an electronic atomizing device, characterized in that, The device includes: The first acquisition module is used to acquire the signal of the inserted atomizer and to calculate the real-time resistance value of the heating element in the atomizer at at least two sampling times, wherein the interval between adjacent sampling times is less than a preset time. The second acquisition module is used to acquire the temperature control resistance value based on the difference between the real-time resistance values ​​at adjacent sampling times; and The control module is used to adjust the heating power of the electronic atomizing device according to the value of the temperature control resistor; The second acquisition module is further configured to: when the difference is less than or equal to a first threshold, use any real-time resistance value as the temperature control resistance value; when the difference is greater than the first threshold and less than or equal to a second threshold, set the most recently acquired real-time resistance value as the temperature control resistance value; when the difference is greater than the first threshold and less than or equal to the second threshold, set the most recently acquired real-time resistance value as the temperature control resistance value; when the difference is greater than the second threshold, continue to acquire the real-time resistance value of the heating element at the next sampling time until the difference between the real-time resistance values ​​at adjacent sampling times is less than or equal to the second threshold, and set the most recently acquired real-time resistance value of the heating element as the temperature control resistance value.

6. A battery assembly comprising a memory and a processor, the memory storing a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the heating control method according to any one of claims 1 to 4.

7. An electronic atomizing device, comprising an atomizer and the battery assembly of claim 6.

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